The La Crosse Tribune (http://bit.ly/13GLik0 ) says Kempfer's mother, 45-year-old Michelle Johnson, was earlier sentenced to five years of probation after pleading guilty to conspiring to deliver heroin. She accompanied her daughter and Harris to Madison when Kempfer bought the heroin that killed Harris.

Kempfer is also facing charges in La Crosse County, where she's accused of selling heroin to police informants.